/* ============================================================
   LAYOUT — Navigation, Footer, Page Shell
   ============================================================ */

/* ──────────────────────────────────────────────────────────────
   PAGE SHELL — Barba.js wrapper structure
   ────────────────────────────────────────────────────────────── */

.page-wrapper {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1;
  padding-top: var(--nav-height);
}

/* ──────────────────────────────────────────────────────────────
   NAVIGATION
   ────────────────────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: all var(--duration-normal) var(--ease-out-expo);
  background-color: transparent;
}

/* Scrolled state — darker, smaller */
.nav--scrolled {
  height: var(--nav-height-scrolled);
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.nav__inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  z-index: calc(var(--z-overlay) + 1);
}

.nav__logo-text {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--text-on-dark);
  white-space: nowrap;
}

.nav__logo-mark {
  width: 32px;
  height: 32px;
  background-color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--bg-primary);
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav__logo:hover .nav__logo-mark {
  transform: scale(1.1);
}

/* Desktop navigation links */
.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--text-on-dark-secondary);
  position: relative;
  padding-block: var(--space-xs);
  transition: color var(--duration-fast) ease;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent);
  transition: width var(--duration-normal) var(--ease-out-expo);
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-on-dark);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* CTA Button in Nav */
.nav__cta {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

/* Hamburger menu toggle */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: calc(var(--z-overlay) + 1);
  padding: 0;
}

.nav__hamburger-line {
  width: 24px;
  height: 1.5px;
  background-color: var(--text-on-dark);
  transition: all var(--duration-normal) var(--ease-out-expo);
  transform-origin: center;
}

/* Hamburger open state */
.nav__hamburger--open .nav__hamburger-line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.nav__hamburger--open .nav__hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__hamburger--open .nav__hamburger-line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ──────────────────────────────────────────────────────────────
   MOBILE MENU — Full-screen overlay
   ────────────────────────────────────────────────────────────── */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              visibility var(--duration-slow) var(--ease-out-expo);
}

.mobile-menu--open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.mobile-menu__link {
  font-family: var(--font-body);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: var(--fw-light);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--text-on-dark);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo),
              color var(--duration-fast) ease;
}

.mobile-menu--open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for each link */
.mobile-menu--open .mobile-menu__link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu--open .mobile-menu__link:nth-child(2) { transition-delay: 150ms; }
.mobile-menu--open .mobile-menu__link:nth-child(3) { transition-delay: 200ms; }
.mobile-menu--open .mobile-menu__link:nth-child(4) { transition-delay: 250ms; }
.mobile-menu--open .mobile-menu__link:nth-child(5) { transition-delay: 300ms; }
.mobile-menu--open .mobile-menu__link:nth-child(6) { transition-delay: 350ms; }
.mobile-menu--open .mobile-menu__link:nth-child(7) { transition-delay: 400ms; }

.mobile-menu__link:hover {
  color: var(--accent);
}

.mobile-menu__cta {
  margin-top: var(--space-2xl);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-out-expo) 450ms,
              transform var(--duration-slow) var(--ease-out-expo) 450ms;
}

.mobile-menu--open .mobile-menu__cta {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu__footer {
  position: absolute;
  bottom: var(--space-xl);
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo) 500ms;
}

.mobile-menu--open .mobile-menu__footer {
  opacity: 1;
}

.mobile-menu__social-link {
  color: var(--text-muted);
  font-size: var(--fs-caption);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  transition: color var(--duration-fast) ease;
}

.mobile-menu__social-link:hover {
  color: var(--text-on-dark);
}

/* ──────────────────────────────────────────────────────────────
   FOOTER
   ────────────────────────────────────────────────────────────── */

.footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-subtle-dark);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-lg);
}

.footer__inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Footer top — logo + tagline + newsletter */
.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-subtle-dark);
}

.footer__brand {
  max-width: 400px;
}

.footer__tagline {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  line-height: var(--lh-snug);
  color: var(--text-on-dark);
  margin-top: var(--space-md);
}

.footer__description {
  color: var(--text-muted);
  margin-top: var(--space-sm);
  font-size: var(--fs-caption);
  line-height: var(--lh-loose);
}

/* Footer newsletter */
.footer__newsletter {
  max-width: 450px;
}

.footer__newsletter-title {
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--text-on-dark);
  margin-bottom: var(--space-sm);
}

.footer__newsletter-form {
  display: flex;
  gap: var(--space-xs);
}

.footer__newsletter-input {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle-dark);
  color: var(--text-on-dark);
  font-size: var(--fs-caption);
  transition: border-color var(--duration-fast) ease;
}

.footer__newsletter-input::placeholder {
  color: var(--text-muted);
}

.footer__newsletter-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Footer columns — sitemap */
.footer__columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
  padding-block: var(--space-2xl);
}

.footer__column-title {
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.footer__column-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__column-link {
  font-size: var(--fs-caption);
  color: var(--text-on-dark-secondary);
  transition: color var(--duration-fast) ease;
}

.footer__column-link:hover {
  color: var(--accent);
}

/* Footer bottom */
.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle-dark);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle-dark);
  color: var(--text-muted);
  transition: all var(--duration-fast) ease;
}

.footer__social-icon:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.footer__social-icon svg {
  width: 18px;
  height: 18px;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

.footer__copyright {
  font-size: var(--fs-small);
  color: var(--text-muted);
}

.footer__legal-link {
  font-size: var(--fs-small);
  color: var(--text-muted);
  transition: color var(--duration-fast) ease;
}

.footer__legal-link:hover {
  color: var(--text-on-dark-secondary);
}

.footer__legal-separator {
  color: var(--border-subtle-dark);
  font-size: var(--fs-small);
}

.footer__credit {
  font-size: var(--fs-small);
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

.footer__credit a {
  color: var(--text-muted-light);
  transition: color var(--duration-fast) ease;
}

.footer__credit a:hover {
  color: var(--accent);
}


/* ──────────────────────────────────────────────────────────────
   PAGE HERO — Reusable hero section structure
   ────────────────────────────────────────────────────────────── */

.page-hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-3xl) 0 var(--space-2xl);
  overflow: hidden;
}

.page-hero--full {
  min-height: 100vh;
}

.page-hero--medium {
  min-height: 70vh;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-hero__bg img,
.page-hero__bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.9) 0%,
    rgba(10, 10, 10, 0.4) 50%,
    rgba(10, 10, 10, 0.2) 100%
  );
}

.page-hero__content {
  position: relative;
  z-index: var(--z-base);
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  width: 100%;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-muted);
  font-size: var(--fs-small);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  animation: scroll-bounce 2s var(--ease-in-out) infinite;
}

.scroll-indicator__line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ──────────────────────────────────────────────────────────────
   SECTION HEADER — Reusable section intro
   ────────────────────────────────────────────────────────────── */

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header--center {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-header__eyebrow {
  margin-bottom: var(--space-sm);
}

.section-header__title {
  margin-bottom: var(--space-md);
}

.section-header__description {
  color: var(--text-muted);
  max-width: 60ch;
  font-size: var(--fs-body-lg);
  line-height: var(--lh-loose);
}

/* ──────────────────────────────────────────────────────────────
   PAGE TRANSITION CURTAIN
   ────────────────────────────────────────────────────────────── */

.transition-curtain {
  position: fixed;
  inset: 0;
  z-index: var(--z-transition);
  background-color: var(--bg-primary);
  transform: translateX(-100%);
  pointer-events: none;
}

/* ──────────────────────────────────────────────────────────────
   SKIP TO CONTENT — Accessibility
   ────────────────────────────────────────────────────────────── */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: var(--z-max);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--accent);
  color: var(--bg-primary);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-caption);
  transition: top var(--duration-fast) ease;
}

.skip-link:focus {
  top: var(--space-sm);
}

/* ──────────────────────────────────────────────────────────────
   RESPONSIVE — Layout
   ────────────────────────────────────────────────────────────── */

@media (min-width: 768px) {
  .footer__top {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  .footer__columns {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .nav__links {
    display: flex;
  }

  .nav__cta {
    display: flex;
  }

  .nav__hamburger {
    display: none;
  }
}